CN201824719U - Blackboard with marker - Google Patents
Blackboard with marker Download PDFInfo
- Publication number
- CN201824719U CN201824719U CN2010205645772U CN201020564577U CN201824719U CN 201824719 U CN201824719 U CN 201824719U CN 2010205645772 U CN2010205645772 U CN 2010205645772U CN 201020564577 U CN201020564577 U CN 201020564577U CN 201824719 U CN201824719 U CN 201824719U
- Authority
- CN
- China
- Prior art keywords
- blackboard
- rotating shaft
- rope
- spindle
- movable pulley
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model belongs to the field of teaching supplies and relates to a blackboard with a marker. The blackboard comprises a rectangular blackboard, wherein two corners at the top end of the blackboard are provided with fixed pulleys; each fixed pulley is provided with a cotton rope; both the left end and the right end of the blackboard are provided with vertical guide rails; each guide rail is internally provided with a movable pulley which can roll along the guide rail; a horizontally-tensioned white rope is fixedly connected between the central shafts of the two movable pulleys; the bottom end of the blackboard is provided with a transverse bearing which is internally provided with a transverse spindle; both the side surfaces at the left end and the right end of the spindle are provided with annular grooves; one end of the spindle is provided with a crank; and one end of the cotton rope on the fixed pulley is fixedly connected with the central shaft of corresponding movable pulley, and the other end is wound in the groove at the corresponding end of the spindle and fixedly connected with the spindle. The blackboard with the marker is convenient in use, and the horizontal white rope is taken as 'a white reference line' which is not drawn on the blackboard so as to play the role of drawing a straight line.
Description
Technical field
The utility model belongs to the realia field, relates to a kind of blackboard that has scriber.
Background technology
Traditional blackboard is a simple black plate face; teacher or student use blackboard; when especially going out blackboard newspaper; often earlier on blackboard, draw a lot of straight line with ruler; write word again, can guarantee the word write so point-blank, rather than crooked; writing or tiltedly arrive the upper right side, or tiltedly arrive the lower right.But writing the later straight line of word is not easy to wipe, and the area between the two drawn straight lines also can limit the size of font, and draw straight line on the blackboard and also require great effort time-consumingly, ruler falls short of, and often long straight line need be finished several sections and couples together and just can reach the length that needs.
The utility model content
The purpose of this utility model provides a kind of blackboard that has scriber, to overcome above-mentioned the deficiencies in the prior art.
In order to solve the problems of the technologies described above, the utility model is realized by the following technical solutions:
A kind of blackboard that has scriber comprises the rectangle blackboard, and the place, two angles on described rectangle blackboard top is equipped with a fixed pulley, and described fixed pulley is provided with a cotton rope; The left end of described rectangle blackboard and right-hand member are equipped with a vertical guide, and being equipped with one in the described guide rail can be along the movable pulley of guide rail rolling, the white rope of a fixedly connected tension between the central shaft of two movable pulleys, and described white rope is horizontal; The bottom of described rectangle blackboard is provided with a horizontal bearing, is provided with a horizontal rotating shaft in the described bearing, and the side, left and right two ends of described rotating shaft is equipped with annular groove, and an end of described rotating shaft is provided with crank; Cotton rope one end on the described fixed pulley is fixedlyed connected with the central shaft of corresponding movable pulley, and the other end is wrapped in the groove of described rotating shaft respective end and with described rotating shaft fixedlys connected.
The middle part of described movable pulley all is connected with balancing weight.
The counterweight size of described balancing weight is suitable with the static required weight of braking movable pulley just, and lives the movable pulley desired position surely.
Using the described blackboard that has scriber to drive rotating shaft by shaking of crank rotates, the rotating shaft groove that rotates twines fixedly connected cotton rope or unclamps, the movable pulley that cotton rope pulling on the movable pulley of top connects, described two movable pulleys up or downwards roll along guide rail, stop to shake crank and utilize balancing weight to live the movable pulley desired position surely, white rope between such two movable pulleys just can be parked in the desired position, described horizontal white rope can be used as " white line " do not signed on the blackboard and uses, and plays the effect of picture straight line.
The blackboard structure that has a scriber of the present utility model is simple, easy to use, its horizontal white rope can be used as " the white line of reference " do not signed on the blackboard, and play the effect of picture straight line, the described blackboard that has scriber has been save the trouble of utilizing ruler to draw line of reference on blackboard, has also save the trouble of wiping prior drawn line of reference after writing is finished writing.
Description of drawings
Fig. 1 has the blackboard schematic diagram of scriber
The specific embodiment
Further set forth the utility model below in conjunction with specific embodiment, should be understood that embodiment only be used to the utility model is described and be not used in the restriction protection domain of the present utility model.
Embodiment
The blackboard that has scriber as shown in Figure 1 comprises rectangle blackboard 1, and the place, two angles on described rectangle blackboard 1 top is equipped with a fixed pulley 2,3, and described fixed pulley 3 is provided with a cotton rope 4, and described fixed pulley 2 is provided with a cotton rope 14; The left end of described rectangle blackboard 1 and right-hand member place are equipped with a vertical guide 5,6, are equipped with the white rope 8 of a fixedly connected tension between movable pulley 15,7, two movable pulleys 15,7 that can roll along guide rail in the described guide rail 5,6, and described white rope 8 is horizontal; The bottom of described rectangle blackboard 1 is provided with a horizontal bearing 9, is provided with a horizontal rotating shaft 10 in the described bearing 9, and the side, left and right two ends of described rotating shaft 10 is equipped with annular groove 11,12, and an end of described rotating shaft 10 is provided with crank 13; Cotton rope 4 one ends on the described fixed pulley 3 are fixedlyed connected with the central shaft of corresponding movable pulley 7, the other end is wrapped in the groove 12 of described rotating shaft 10 respective end and with described rotating shaft 10 fixedlys connected, cotton rope 14 1 ends on the described fixed pulley 2 are fixedlyed connected with the central shaft of corresponding movable pulley 15, and the other end is wrapped in the groove 11 of described rotating shaft 10 respective end and with described rotating shaft 10 fixedlys connected.
The middle part of described movable pulley 15,7 all is connected with balancing weight 16,17.
Claims (2)
1. a blackboard that has scriber comprises the rectangle blackboard, it is characterized in that, the place, two angles on described rectangle blackboard top is equipped with a fixed pulley, and described fixed pulley is provided with a cotton rope; The left end of described rectangle blackboard and right-hand member are equipped with a vertical guide, and being equipped with one in the described guide rail can be along the movable pulley of guide rail rolling, the white rope of a fixedly connected tension between the central shaft of two movable pulleys, and described white rope is horizontal; The bottom of described rectangle blackboard is provided with a horizontal bearing, is provided with a horizontal rotating shaft in the described bearing, and the side, left and right two ends of described rotating shaft is equipped with annular groove, and an end of described rotating shaft is provided with crank; Cotton rope one end on the described fixed pulley is fixedlyed connected with the central shaft of corresponding movable pulley, and the other end is wrapped in the groove of described rotating shaft respective end and with described rotating shaft fixedlys connected.
2. the blackboard that has scriber as claimed in claim 1 is characterized in that: the middle part of described movable pulley all is connected with balancing weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205645772U CN201824719U (en) | 2010-10-15 | 2010-10-15 | Blackboard with marker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205645772U CN201824719U (en) | 2010-10-15 | 2010-10-15 | Blackboard with marker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201824719U true CN201824719U (en) | 2011-05-11 |
Family
ID=43963273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205645772U Expired - Fee Related CN201824719U (en) | 2010-10-15 | 2010-10-15 | Blackboard with marker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201824719U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103255702A (en) * | 2013-05-15 | 2013-08-21 | 朱劲荣 | Bidirectional reciprocated pulling type mark scraper |
| CN112606597A (en) * | 2020-12-24 | 2021-04-06 | 吉林建筑大学 | English classroom teaching is with supplementary blackboard writing marking tool |
-
2010
- 2010-10-15 CN CN2010205645772U patent/CN201824719U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103255702A (en) * | 2013-05-15 | 2013-08-21 | 朱劲荣 | Bidirectional reciprocated pulling type mark scraper |
| CN103255702B (en) * | 2013-05-15 | 2016-03-09 | 朱劲荣 | Bidirectional reciprocating pulls formula scriber |
| CN112606597A (en) * | 2020-12-24 | 2021-04-06 | 吉林建筑大学 | English classroom teaching is with supplementary blackboard writing marking tool |
| CN112606597B (en) * | 2020-12-24 | 2022-09-02 | 吉林建筑大学 | English classroom teaching is with supplementary blackboard writing marking tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20111015 |